| 28601 | Swevco-Sabw LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 28602 | Swiess & Thomas | San Antonio, TX 78247 | Oil Operator | May 2025 |
| 28603 | Swift A W & Company Inc | Sand Springs, OK 74063-5124 | Oil Operator | Jun 2003 |
| 28604 | Swift Beef Company | | Oil & Gas Operator | May 2006 |
| 28605 | Swift Energy Com | | Oil & Gas Operator | Sep 1995 |
| 28606 | Swift Energy Company | Houston, TX 77060 | Oil & Gas Operator | Mar 2021 |
| 28607 | Swift Energy Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Jun 2017 |
| 28608 | Swinea Well Service Inc | Drumright, OK 74030 | Oil & Gas Operator | Mar 2015 |
| 28609 | Swingle Drilling Inc | Crooksville, OH 43731 | Oil & Gas Operator | Dec 2024 |
| 28610 | Swinkwood Oil Co | | Oil Operator | Apr 2015 |
| 28611 | SWJN Oil Company | Kilgore, TX 75663 | Oil Operator | May 2025 |
| 28612 | SWN Production (Louisiana), LLC | | Oil & Gas Operator | Dec 2024 |
| 28613 | SWN Production (Ohio), LLC | Morgantown, WV 26508 | Oil & Gas Operator | Mar 2024 |
| 28614 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Mar 2025 |
| 28615 | SWN Production LLC | Spring, TX 77389-4954 | Oil & Gas Operator | Feb 2022 |
| 28616 | Swo & Ism, LLC | | Oil & Gas Operator | Dec 2021 |
| 28617 | Swope Corp. | Austin, TX 78735 | Oil & Gas Operator | May 2025 |
| 28618 | SWS | Humble, TX 77338 | Oil Operator | May 2025 |
| 28619 | SWS Operating LLC | Lawton, OK 73501-3236 | Oil Operator | Sep 2024 |
| 28620 | SWV Energy Operating LLC | Spring, TX 77379 | Gas Operator | Dec 2018 |
| 28621 | SX54, LLC | Sheridan, WY 82801 | Oil Operator | Nov 2017 |
| 28622 | Sydri Operating, LLC | Dallas, TX 75231 | Oil & Gas Operator | May 2025 |
| 28623 | Sydson D'Oro Expl. Co. | Houston, TX 77079 | Oil & Gas Operator | Jan 1992 |
| 28624 | Sydson Energy, Inc. | Houston, TX 77027 | Oil & Gas Operator | May 2025 |
| 28625 | Syj Oil & Gas | San Antonio, TX 78209 | Oil Operator | Sep 2000 |
| 28626 | Syj Oil & Gas, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | May 2025 |
| 28627 | Sylvan Energy, LLC | Pittsburgh, PA 15211 | Oil & Gas Operator | May 2025 |
| 28628 | Sylvan Oil Operating Company | Tulsa, OK 74103-3516 | Oil & Gas Operator | Apr 2016 |
| 28629 | Sylvite Corp | Tulsa, OK 741363908 | Oil & Gas Operator | Dec 2000 |
| 28630 | Symank, Steve | Olney, TX 76374 | Oil & Gas Operator | May 2025 |
| 28631 | Symba American Oil, Inc | Houston, TX 77056 | Oil Operator | May 2025 |
| 28632 | Synd Enterprises Inc | Lakewood, NY 14750-9613 | Oil & Gas Operator | Dec 2006 |
| 28633 | Syndex Resources, Inc. | Wellesley, MA 02181-000 | Oil & Gas Operator | Dec 2021 |
| 28634 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Feb 2025 |
| 28635 | Synergy Development Corp | | Oil Operator | Apr 2011 |
| 28636 | Synergy Offshore LLC | Houston, TX 77024 | Oil & Gas Operator | Feb 2022 |
| 28637 | Synergy Oil & Gas LLC | | Oil & Gas Operator | Feb 2025 |
| 28638 | Synergy Oil & Gas, Inc. | Houston, TX 77024 | Oil & Gas Operator | Nov 2019 |
| 28639 | Synergy Oil & Gas, Inc. (A) | Houston, TX 77024 | Oil & Gas Operator | Aug 2001 |
| 28640 | Synergy Oil & Gas, L.P. | Houston, TX 77024 | Oil & Gas Operator | May 2012 |
| 28641 | Synergy Operating Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | May 2025 |
| 28642 | Synergy Operating LLC | Farmington, NM 87499 | Oil & Gas Operator | Jul 2024 |
| 28643 | Synergy Production Company | Houston, TX 77024 | Oil & Gas Operator | Jan 1996 |
| 28644 | Synergy Resources | Artesia, NM 88210 | Oil & Gas Operator | Jan 2015 |
| 28645 | Synergy Resources Corporation | | Oil & Gas Operator | Oct 2022 |
| 28646 | Syntax Energy Corporation | Denton, TX 76210 | Oil Operator | May 2025 |
| 28647 | Synthetic Energy Corporation | Houston, TX 77006 | Oil Operator | May 2025 |
| 28648 | Szumigala, Edward R. & Ruth A. | Dunkirk, NY 14048 | Gas Operator | Dec 2023 |
| 28649 | T & A Resources LLC | Salyersville, KY 41465 | Oil Operator | Dec 2023 |
| 28650 | T & B Oil Company Inc | Ardmore, OK 73401-3709 | Oil & Gas Operator | Apr 2015 |
| 28651 | T & B Resources | | Oil & Gas Operator | Jul 1990 |
| 28652 | T & C MFG. & Operating, Inc. | Great Bend, KS 67530 | Oil Operator | May 2022 |
| 28653 | T & C Oil, Inc. | Lubbock, TX 79424 | Oil & Gas Operator | Apr 2024 |
| 28654 | T & D Oil | Wichita Falls, TX 76307 | Oil & Gas Operator | May 2025 |
| 28655 | T & D Oil Co. | Victoria, KS 67671 | Oil Operator | Apr 1996 |
| 28656 | T & D Oil Compan | | Oil Operator | Jan 1992 |
| 28657 | T & D Oil LLC (Osage Only) | | Oil & Gas Operator | Jan 2025 |
| 28658 | T & F Exploration, LP | Pittsburgh, PA 15241-1375 | Oil & Gas Operator | Oct 2024 |
| 28659 | T & F Oil Company | | Oil Operator | Jan 2025 |
| 28660 | T & F Oil Company, LLC | | Oil Operator | Oct 2011 |
| 28661 | T & G Energy LLC | Dallas, TX 75230 | Oil Operator | Nov 2010 |
| 28662 | T & G Holding LLC | Pauls Valley, OK 73075-8663 | Oil & Gas Operator | Mar 2015 |
| 28663 | T & G Oil, Inc. | White Oak, TX 75693 | Oil & Gas Operator | Dec 2010 |
| 28664 | T & H Drilling | Middleport, OH 45760 | Oil & Gas Operator | Dec 2009 |
| 28665 | T & I Petroleum Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2005 |
| 28666 | T & J Oil Production, L.L.C. | Lone Grove, OK 73443 | Oil & Gas Operator | Feb 2025 |
| 28667 | T & J Operating | Ada, OK 74821-1547 | Oil Operator | Feb 2012 |
| 28668 | T & K Oil, Inc | Stephens, AR 71764 | Oil Operator | Aug 2024 |
| 28669 | T & L Oil Production | | Oil Operator | Jan 2025 |
| 28670 | T & L Production | | Oil Operator | May 1987 |
| 28671 | T & L Production Company | | Oil Operator | Feb 1984 |
| 28672 | T & M Gauging | | Oil Operator | Oct 2006 |
| 28673 | T & M Oil & Royalty | Ada, OK 74820 | Oil Operator | Feb 2012 |
| 28674 | T & M Oil Company | Midlothian, TX 76065 | Oil & Gas Operator | May 2025 |
| 28675 | T & O Gas Co | | Oil Operator | May 2001 |
| 28676 | T & P Exploration | Addison, TX 75006 | Oil & Gas Operator | Aug 1993 |
| 28677 | T & P Oil & Gas, L.L.C. | Overland Park, KS 66212 | Oil Operator | Dec 2009 |
| 28678 | T & R Investments, Inc. | Borger, TX 79008 | Oil & Gas Operator | Nov 1995 |
| 28679 | T & R Oil | Mapleton, KS 66754 | Oil & Gas Operator | May 2018 |
| 28680 | T & R Oil Company, A General Partnership | Moline, KS 67353 | Oil Operator | Dec 2019 |
| 28681 | T & T Compression Inc | Clymer, PA 15728-1014 | Gas Operator | Dec 2024 |
| 28682 | T & T Contracting Dba Hulman Contracting, LLC | Rockfield, KY 42274 | Oil & Gas Operator | Dec 2023 |
| 28683 | T & T Oil Co. | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2002 |
| 28684 | T & T Production Co. | Victoria, TX 77902 | Oil & Gas Operator | Feb 1995 |
| 28685 | T & W Ward Oil LLC | Blackwell, OK 74631 | Oil Operator | Feb 2025 |
| 28686 | T - C Oil Company | Refugio, TX 78377 | Oil & Gas Operator | Jan 2012 |
| 28687 | T And DS Lube Doctors LLC | Carlsbad, NM 88220 | Gas Operator | Mar 2025 |
| 28688 | T And L Oil Inc | Tonkawa, OK 74653-4530 | Oil & Gas Operator | Jan 2025 |
| 28689 | T B C Inc | Coweta, OK 74429 | Oil & Gas Operator | Apr 2020 |
| 28690 | T B Drilling Co | Moxahala, OH 43761 | Oil & Gas Operator | Dec 1998 |
| 28691 | T B K Energy Company | New Braunfels, TX 78130 | Oil & Gas Operator | Mar 2025 |
| 28692 | T Bar M Energy Resources LLC | Mounds, OK 74047 | Oil & Gas Operator | Feb 2025 |
| 28693 | T C Craighead & Company LLC | Ardmore, OK 73401 | Oil & Gas Operator | Aug 2019 |
| 28694 | T C Production | | Oil Operator | May 1994 |
| 28695 | T D Cox Oil Corporation | | Oil & Gas Operator | Feb 2025 |
| 28696 | T D Energy Company Inc | Broken Arrow, OK 74011-3953 | Oil & Gas Operator | Feb 2015 |
| 28697 | T Dozer D Oil Co. | Goree, TX 76363 | Oil & Gas Operator | May 2025 |
| 28698 | T E F Inc | Madill, OK 73446-6656 | Oil & Gas Operator | Jul 2023 |
| 28699 | T E L Oil & Gas Corporation | Guymon, OK 73941 | Gas Operator | Feb 2025 |
| 28700 | T G & S Oil | Marietta, OK 73448 | Oil & Gas Operator | Mar 2025 |